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87920000082 = 2324884444449
BaseRepresentation
bin101000111100001110…
…0001011110001010010
322101221021222202122100
41101320130023301102
52420030010000312
6104220114421230
76231511445565
oct1217034136122
9271837882570
1087920000082
11343176033a2
1215058291816
1383a1c178b5
14438097a4dc
1524489655dc
hex147870bc52

87920000082 has 12 divisors (see below), whose sum is σ = 190493333550. Its totient is φ = 29306666688.

The previous prime is 87920000057. The next prime is 87920000083. The reversal of 87920000082 is 28000002978.

It can be written as a sum of positive squares in only one way, i.e., 46104248961 + 41815751121 = 214719^2 + 204489^2 .

It is not an unprimeable number, because it can be changed into a prime (87920000083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2442222207 + ... + 2442222242.

Almost surely, 287920000082 is an apocalyptic number.

87920000082 is an abundant number, since it is smaller than the sum of its proper divisors (102573333468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87920000082 is a wasteful number, since it uses less digits than its factorization.

87920000082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884444457 (or 4884444454 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 87920000082 in words is "eighty-seven billion, nine hundred twenty million, eighty-two", and thus it is an aban number.

Divisors: 1 2 3 6 9 18 4884444449 9768888898 14653333347 29306666694 43960000041 87920000082